申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP0347831A2
公开(公告)日:1989-12-27
A pyridine derivative of formula
wherein X¹-X² represents
wherein
wherein R⁴ represents hydrogen alkyl or a substituted or unsubstituted aralkyl; R⁵ reoresents a hydrogen, alkoxy or alkylthio and R⁶ and R⁸, which may be the same or different, each represent hydrogen, alkyl or alkenyl, R⁷ represents hydrogen or R⁶ and R⁷ are taken together to form
wherein R⁹ represents alkyl; and m represents an integer of from 1 to 3; and any one of a, b, and c represents a nitrogen or an N-oxide (N→O), with the other two representing a carbon atom, which exhibits selective, potential, and long-lasting inhibitory activity on biosynthesis of thromboxane A₂ and is useful in the treatment and prevention of a broad range of diseases.
式中的吡啶衍生物
其中 X¹-X² 代表
其中
其中 R⁴ 代表氢烷基或取代或未取代的芳烷基;R⁵ 代表氢、烷氧基或硫代烷基,R⁶ 和 R⁸ 可以相同或不同,各自代表氢、烷基或烯基,R⁷ 代表氢或 R⁶ 和 R⁷ 结合在一起构成
其中 R𠞙 代表烷基;m 代表 1 至 3 的整数;a、b 和 c 中的任何一个代表氮或 N-氧化物(N→O),另外两个代表碳原子,对血栓素 A₂ 的生物合成具有选择性、潜在和持久的抑制活性,可用于治疗和预防多种疾病。